A vagabond swordsman is aided by a kunoichi and a spy in battling a demonic clan of killers - led by a ghost from his past - who are bent on overthrowing the Tokugawa Shogunate.

A Journeyman ninja by name of Jubei stumbles upon a plague, an evil clan of demons, a national crisis, and a beautiful ninja girl.—Anonymous

All the people of the town of Shimoda have been killed by a plague. The local government, the Togugawa clan, send a team of ninjas to investigate but all but one of them are wiped out by mysterious forces. The only survivor is a woman, Kagero, who is taken prisoner. A samurai mercenary, Jubei, rescues her but his interest in her mission and cause is temporary.—grantss